Biology 105 Lecture Notes 11
Where is declarative memory?
epilepsy electrical stimulation lesion
Temporal lobe epilepsy
feelings of familiarity or unfamiliarity
temporal cortex electrical stimulation causes the same
Biology 105 Lecture Notes 10
The final common pathway
To move things is all that mankind can do . for such the sole executant is muscle,
whether in whispering a syllable, or in felling a forest.
Charles Sherrington, 1924
striatum dorsal: ca
Biology 105 Lecture Notes 9
Supraspinal motor areas
Eye movements are controlled by six extraocular muscles
One pair of muscles for each: Horizontal
Extraocular motor neurons are in the b
Biology 105 Lecture Notes 8
DRG cells bring sensory information to the spinal cord
Muscle spindles are special fibers wrapped in Ia axons
Muscle spindles sense changes in muscle length
They are also called stretch receptors, They are examples of proprioc
Biology 105 Lecture Notes 7
Actin/myosin is a molecular motor
In vitro motility assay
See the animation at:http:/physiology.med.uvm.edu/warshaw/ TechspgInVitro.html
A muscle is a bundle of fibers.
A fiber is a bundle of myofibrils.
Biology 105 Lecture Notes 6
2000 glomeruli in the bulb
axons of receptor neurons meet dendrites of second-order neurons
Each glomerulus receives input from one type of ORN
Central olfactory pathways
direct pathway to olfactory cortex
Biology 105 Lecture notes 3
Sound in air is mostly reflected when it meets fluid.
This is why its so quiet underwater.
Sound penetrates very little, because fluid is more difficult to move than air.
This is a special case of a general phenomenon called im
Biology 105 Lecture Notes 2
Right and left visual hemifields
Theleftvisual hemifield is viewed by the right hemisphere, and vice versa.
Simple cell receptive field
elongated ON and OFF subregions antagonistic organization
Biology 105 lecture note 1
Finding the receptive field
Record the action potentials of an axon in the optic nerve
Present visual stimuli at various locations
Find the location at which a stimulus can cause changes in the firing rate.
Biology 105 Lecture 5 Notes
How is the receptor potential generated? ion channel GPCR
Psychology of taste
What is taste for? Distinguish between food and poison Distinguish between types of
How many basic tastes are there? sal
Biology 105 Lecture 4
Hair cells synapse onto neurons
in the spiral ganglion
Depolarizationleads to calcium influx through voltage-gated calcium channels
Calciumcauses release of neurotransmitter.
There are two kinds of hair cells
Outer hair cells (OHC)